Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – To produce composite – plural part or multilayered article
Patent
1975-11-19
1978-01-10
Kucia, Richard R.
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
To produce composite, plural part or multilayered article
264275, 264279, 264334, B29D 302
Patent
active
040679519
ABSTRACT:
The invention is concerned with an injection mold for making a plastic impedance measurement module having a generally flat metal grid imbedded in the plastic thereof with a plurality of pairs of electrodes upstanding generally perpendicularly from said grid, one pair into each of a plurality of chambers, said electrodes being uncoated by said plastic.
The process comprises placing the grid adjacent a first mold half of an injection mold with the electrodes each within a respective one of a plurality of slots extending into the first mold half, the first mold half having a first generally flat recessed portion defining a top surface of a base of the module and a plurality of channels extending from the first portion into the first mold half defining the plurality of chambers. The process further includes bringing together the first mold half and a second mold half having a second generally flat usually non-recessed portion for forming the injection mold, first support means extending from the second portion supportingly contacting the grid and injecting plastic into the mold to form the module.
REFERENCES:
patent: 3311690 (1967-03-01), Fischer
patent: 3641254 (1972-02-01), Bunting
patent: 3668779 (1972-06-01), Turner
patent: 3671621 (1972-06-01), Fukuoka
patent: 3712575 (1973-01-01), Bement
patent: 3896545 (1975-07-01), MacTurk
patent: 3963822 (1976-06-01), Beck
Fleming James H.
Rudin Melvin
Bactomatic Inc.
Kucia Richard R.
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